What are macroscopic quantities and microscopic quantities?

(N/A) Macroscopic quantities are those that describe the bulk properties of a system as a whole,without considering the individual behavior of its constituent particles. Examples include pressure $(P)$,volume $(V)$,temperature $(T)$,and internal energy $(U)$. These are directly measurable in a laboratory.
Microscopic quantities are those that describe the properties of individual particles (atoms or molecules) within the system,such as their position $(r)$,velocity $(v)$,momentum $(p)$,and kinetic energy $(k)$. These quantities are not directly measurable for a large number of particles and are instead handled using statistical methods.